FCD-2L - RAD Data Communications

FCD-2L
E1 or Fractional E1 Access Unit
FEATURES
• E1 or Fractional E1 access
unit with one digital data
port
• Selectable synchronous data
rates of n × 64 kbps or
n × 56 kbps, up to
1984 kbps
• V.35, RS-530, V.36/RS-449,
X.21 synchronous data
interfaces
• Optional high-performance
built-in Ethernet bridge, with
or without VLAN support
• Framing format: 2 or
16 frames per multiframe,
with or without CRC-4, or
unframed over E1
• E1 interface complies with:
ITU G.703, G.704, G.732,
G.823, G.706
• E1 link available with or
without LTU

FCD-2L
E1 or Fractional E1 Access Unit
DESCRIPTION
• FCD-2L is a single-port access unit
for E1 or Fractional E1 services.
Data port rates are selectable for
any multiple of 64 or 56 kbps, up
to 1984 kbps. User data is placed
into an E1 frame using only the
required number of timeslots.
• FCD-2L is available with or
without an LTU (Line Termination
Unit). This allows connection
directly to the service provider’s
line or, alternatively, via an
integral LTU ensuring a range of
up to 2 km (1.2 mi).
• The E1 interface of FCD-2L is
compatible with virtually all
carrier-provided E1 services and
meets the requirements of ITU
recommendations G.703, G.704,
G.706, and G.732. It supports
either 2 or 16 frames per
multiframe, with or without
CRC-4, as well as unframed data
streams. Line coding is HDB3.
• FCD-2L can also be used as a rate
and interface converter between
the user data port interface and
E1 (G.703, G.704) lines.
• FCD-2L has a single user port,
which can be a synchronous data
port with V.35, RS-530,
V.36/RS-449 or X.21 interface, or
a single LAN port with built-in
bridge.
• The synchronous data ports can
operate in the following clock
modes:
• DCE: FCD-2L provides both
transmit and receive clocks to
the connected user equipment,
with optional sampling of the
incoming data with an inverted
clock
• DTE1: FCD-2L provides the
transmit clock; connected user
equipment provides the receive
clock
• DTE2: connected user
equipment provides both
transmit and receive clocks to
FCD-2L.
• When equipped with optional
IR-ETH or IR-ETH/Q bridge,
FCD-2L can transparently connect
remote LANs over unframed E1
links, utilizing the full E1
bandwidth. It filters Ethernet
frames, forwarding only the
frames destined to the WAN. The
IR-ETH/Q Ethernet port also
supports VLANs.
• The LAN ports are available with a
10BaseT (UTP) Ethernet interface.
The ports operate in full-duplex
mode.
• Timeslot assignment is according
to the data port speed and is
consecutive, starting from any
timeslot.
• The E1 link timing may be taken
from the recovered receive clock
(LBT) or from an internal
oscillator.
• FCD-2L is set up and controlled
by internal jumpers. Front-panel
switches control all diagnostic
options.
• Diagnostic capabilities include
user-activated local loopbacks on
the E1 link and on the digital data
port. The data port can respond to
an inband ANSI FT1 loop code
that can be generated from the
remote FCD-2L data port. A
pseudo-random data pattern
(BERT) can be activated and
detected on the data channel.
• The FCD-2L front panel can
display Major and Minor alarms.
FCD-2L also has a high Bit Error
Rate (BER) indicator, which lights
when the BER on the E1 line is
higher than 1 x 10 -3 .
• FCD-2L is available as a
standalone unit or as a card for
the 19-inch rack mount enclosure,
ASM-MN-214. A rack-mount
adaptor kit (RM-9) enables
installation of one or two
standalone units in a 19-inch rack.
APPLICATION

FCD-2L
E1 or Fractional E1 Access Unit
SPECIFICATIONS
E1 PORT (NETWORK)
• Framing
256N (no MF, CCS)
256N (no MF, CCS) with CRC-4
256S (TS16 MF, CAS)
256S (TS16 MF, CAS) with CRC-4
Unframed mode
• Data Rate
2.048 Mbps
• Line Code
HDB3
• Impedance
Balanced: 120Ω
Unbalanced: 75Ω
• Signal Level
Receive:
0 to -36 dB with LTU
0 to -10 dB without LTU
Transmit:
Balanced: 3V (±10%)
Unbalanced: 2.37V (±10%)
• Jitter Performance
As per ITU G.823
• Connector
Balanced: RJ-45, 8-pin
Unbalanced: pair of BNC coaxial
• Transmit Timing
Internal clock: ±30 ppm
Loopback timing: ±130 ppm
• Timeslot Allocation
Consecutive (bundled) starting
from any timeslot
• Compliance
ITU G.703, G.704, G.706, G.732
SYNC DATA PORT
• Interface
• RS-530
• V.35, V.36/RS-449 and X.21
available via adapter cables (see
Ordering)
• Connector
25-pin D-type, female
• Data Rate
n × 56 kbps or n × 64 kbps,
n=1 to 32
• Clock Modes
DCE: Rx and Tx clock to
synchronous DTE
DTE1: Rx clock to synchronous
device; Tx clock from
synchronous device
DTE2: Rx and Tx clock from DCE
• Control Signals
• CTS follows RTS or constantly
ON, strap selectable
• DSR constantly ON, unless in
test mode
• DCD constantly ON, unless in
local sync loss
ETHERNET BRIDGE PORTS
• LAN Table
• IR-ETH: 10,000 addresses
• IR-ETH/Q: 2,000 addresses
• Filtering and Forwarding
• IR-ETH: 15,000 pps
• IR-ETH/Q: 2,000 pps
• Buffer
256 frames
• Delay (IR-ETH only)
1 frame
• Line Code
Manchester
• WAN Protocol
HDLC
Note: IR-ETH and IR-ETH/Q interface
modules conform to the IEEE
802.3/Ethernet V2 standard.
Additionally, IR-ETH/Q supports the
IEEE 802.1/Q frames.
• Connector
Shielded RJ-45
GENERAL
• Diagnostics
Local loopback on E1 port
Local and remote loopbacks on
data port
BER test on data port
• Indicators
PWR, RTS, TEST, ERR,
10 -3 , TD, RD
SYNC LOSS: LOC, REM
ALARM: MIN, MAJ
• Physical
• Standalone:
Height: 4.4 cm (1.7 in) (1U)
Width: 19.3 cm (8 in)
Depth: 24 cm (9.5 in)
Weight: 1.3 kg (2.9 lb)
• Card:
Dimensions: fits the
ASM-MN-214 modem rack
Weight: 360 g (10 oz)
• Power
AC: 100 to 240 VAC; 47 to 63 Hz
DC: -48 VDC (-40 to -57 VDC)
24 VDC (18 to 36 VDC)
• Power consumption:
5W
• Environment
Temperature: 0°-50°C (32°-122°F)
Humidity: Up to 90%,
non-condensing

FCD-2L
E1 or Fractional E1 Access Unit
ORDERING
FCD-2L/~/&/@
E1 or Fractional E1 Access Standalone
Unit
FCD-2L/R/&/@
E1 or Fractional E1 Access Card for
ASM-MN-214 Rack
~ Specify power supply voltage:
AC for 110 VAC to 240 VAC
48 for -48 VDC
24 for 24 VDC
& Specify data port interface:
530 for RS-530
V35 for V.35
X21 for X.21
V36 for V.36/RS-449
ETUB for UTP (10BaseT) Ethernet
bridge
ETUQ for UTP (10BaseT) Ethernet
bridge with VLAN support
@ Specify LTU for integral line
termination unit
Default is without LTU
SUPPLIED ACCESSORIES
AC power cord (if AC power supply is
ordered)
DC adapter plug (if DC power supply
is ordered)
CABLES
Interface adapter cables for DB-25
channel connectors (DCE clock mode
only). Cable length is 2m (6 ft).
CBL-HS2/V/1/# for 34-pin V.35, DCE
CBL-HS2/R/1/# for 37-pin V.36, DCE
CBL-HS2/X/1/# for 15-pin X.21, DCE
# Specify cable connector type:
F for female
M for male
OPTIONAL ACCESSORIES
RM-9
Hardware kit for mounting one or
two units side-by-side in a 19-inch
rack
CABLES
Interface adapter cables for DB-25
channel connectors (DTE1 and DTE2
clock modes). Cable length is 2m
(6 ft).
CBL-HS2/*/#
* Specify interface, clock mode:
V/2 for 34-pin V.35, DTE1
V/3 for 34-pin V.35, DTE2
R/2 for 37-pin V.36/RS-449, DTE1
R/3 for 37-pin V.36/RS-449, DTE2
# Specify cable connector type:
F for female
M for male
CIA-FCD2L/*
Mechanical adapter for converting
DB-25 connectors into standard
connectors for FCD-2L/R
* V35/1 for V.35 interface
X21/1 for X.21 interface
ETU/1 for Ethernet interface
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171-100-11/05
© 1991–2005 RAD Data Communications Ltd. Specifications are subject to change without prior notice.
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